城市非岩溶环境地面塌陷危险性模糊评价

Fuzzy Evaluation Method for Collapse Risks in Non-Karst Urban Area

在人类活动的影响下,非岩溶环境中城市区域的塌陷越来越频繁。与岩溶塌陷相比,非岩溶环境下的塌陷影响因素和作用方式有很大不同。分析了非岩溶环境下塌陷的主要影响因素,以模糊数学理论为基础,结合层次分析法,对城市区域的非岩溶环境下的塌陷危险性评价方法进行了研究,得出具体评价方法,建立相应的权重矩阵和隶属度矩阵,最终求得塌陷的危险度矩阵。该方法应用于重庆解放碑的地面塌陷危险性评价,评价方法是可行的,对非岩溶环境下的塌陷危险性评价研究有一定的参考意义。

Under the influence of human activity,the collapse is more and more frequently in non-karst urban areas,and compared with the karst collapse,the influencing factors to non-karst environment subsidence have many differences. Basing on the fuzzy mathematics and analytic hierarchy process（ AHP）,we analyzed the main influence factors of the non-karst collapse,and studied the evaluation method for non-karst collapse risks in urban areas,and got a specific evaluation method,and set up relevant weight matrix and membership matrix,and finally obtained the collapse risk matrix,and it was applied to the Jiefangbei area in Chongqing. The results show that the evaluation method is feasible,and research on the risk assessment under the environment of non-karst collapse has certain reference significance.